Blaze vs Charge HR

[MichelleSt]

I have been wearing A Fitbit tracker for almost 2 years now. I started with the Charge HR and switched to the Blaze a little over a month ago. The first Blaze was only tracking about 60 steps out of 100, so I contacted customer service and they sent me a new one. This one seems to be working better, but it is still off. My husband and I walk our dogs in the park on a regular basis. He wears my old Charge HR and I wear my new Blaze. He consistently will get 700-1000 steps more than me during a 2 mile walk, and he is taller with a longer stride. 

I know when I wore the Charge I would consistently hit well over 10,000 steps per day. I am lucky if I reach 10,000 with my Blaze. Is there a difference of how the Blaze tracks steps vs the CHR? I have noticed a few others have commented on this, but haven't found a straightforward answer. I love everything else about the Blaze except this feature. 

I also notice if I am pushing a cart while shopping I get virtually no steps registering on the tracker at all. This also never happened with my CHR. It always accounted for my steps whether my hands were at my sides or resting on the cart. 

[Rich_Laue]

@MichelleSt I'm starting with your last point

Pushing a cart will keep both tracker from counting steps.

Your tracker is on the arm, and therefore is only able to look at the motions of the arm. It really has no idea what the feet are doing.

It does know what the arms should be doing when the feet are moving, it looks for this type of arm motions. 

With an arm on the carriage are cart, the handle is kerping the arm from moving up/down. The arm is essential gliding across the floor,  sure it will count some steps,but these will be from bumps on the floor. The Charge HR did the same thing, just wasn't noticed.

As for how they work, it is the same.

They have an XYZ acceleration sensor.  This means they detect changes in motion in any direction.  They can not detect motion onless it is changing speed or direction.

Have you done a step count test?

Put the traker in walk mode.

Take a walk while counting steps. Stop and compare with the Blaze count.

Check for 100, 200, i go for 500, and 1000.

With the last update it has been  lose, within 5 steps.

Before it was always 20 +/- 1 steps off. 100 steps read 80. 1000 steps read 980. 

At 100 steps i was 20% off, not good.

At 500 steps 4% off. Now we are within thev 5% Fitbit claims.

At 1000 steps I'm at 99% accuracy.